Abstract: Provided is an adhesive method of pressure-sensitive adhesive sheet for vehicle coatings, giving a pressure-sensitive adhesive sheet highly adhesive even to a coating surface easily causing the low adhesion by bleed-out of leveling agent or the like. The adhesive method of pressure-sensitive adhesive sheet for vehicle coatings according to the present invention is characterized in that the difference (absolute value) between the solubility parameter (SP value) of a pressure-sensitive adhesive layer (X) formed on the side of the pressure-sensitive adhesive sheet in contact with the vehicle coating and the solubility parameter (SP value) of the surface control agent contained in the vehicle coating is 0.6 (cal/cm3)1/2 or less.

Abstract: Provided is an acrylic pressure-sensitive adhesive tape or sheet highly adhesive to hard-to-adhere adherends such as coatings having the surface control agent bleeding thereon. The acrylic pressure-sensitive adhesive tape or sheet, according to the present invention, having a viscoelastic layer (X) containing microspheres and an acrylic polymer containing an alkyl (meth)acrylate as the principal monomer component as the base polymer and a pressure-sensitive adhesive layer (Y) formed at least on one side of the viscoelastic layer (X) by irradiation of an acrylic monomer mixture or a prepolymer of the acrylic monomer mixture with active energy ray, wherein the amount of acrylic acid in the acrylic monomer mixture for the pressure-sensitive adhesive layer (Y) or a prepolymer of the acrylic monomer mixture is 6 to 12 wt % with respect to all monomer components and the amount of n-butyl acrylate is 35 to 65 wt % with respect to the total amount of 2-ethylhexyl acrylate and n-butyl acrylate.

Abstract: Disclosed is an acrylic pressure-sensitive adhesive composition that gives a pressure-sensitive adhesive layer exhibiting superior adhesiveness even to coatings, which are likely to cause low adhesion due to bleeding typically of a surface conditioner, without requiring, for example, washing process. The acrylic pressure-sensitive adhesive composition contains a vinyl monomer or a partial polymer thereof (a); and a (meth)acrylate co-oligomer (b), in which the vinyl monomer contains, as a main component, an alkyl(meth)acrylate monomer (a1) having an alkyl group with 2 to 14 carbon atoms, and the (meth)acrylate co-oligomer (b) has a weight-average molecular weight of from 1000 to 30000 and contains, as monomer components, 96 to 99.5 percent by weight of an alkyl(meth)acrylate (b1) and 0.1 to 4 percent by weight of a (meth)acryloyl group-containing silicone oil (b2).

Abstract: Provided is a sheet for protecting coatings that shows superior adhesiveness even to coatings often causing low adhesive by bleeding for example of leveling agent and others without a washing treatment and the like, retains its preferable adhesion state for an extended period of time, and is easily releasable when separated even after being bonded for an extended period of time. The sheet for protecting coatings according to the present invention is characterized by including a supporting substrate and a pressure-sensitive adhesive layer formed at least on one side thereof, containing a rubber-based polymer and an aliphatic (meth)acrylic oligomer having a glass transition temperature of 30 to 100° C. and a weight-average molecular weight of 1000 to 20,000, wherein the blending amount of the (meth)acrylic oligomer is 0.02 to 1 wt part with respect to 100 wt parts of the rubber-based polymer.

Abstract: Disclosed is an acrylic pressure-sensitive adhesive tape or sheet that exhibits satisfactory adhesion to hard-to-adhere adherends. The acrylic pressure-sensitive adhesive tape or sheet includes a microsphere-containing viscoelastic layer (X); and a pressure-sensitive adhesive layer (Y) arranged on at least one side of the viscoelastic layer (X). The pressure-sensitive adhesive layer (Y) is derived from an acrylic pressure-sensitive adhesive composition through the application of an active energy ray, and the acrylic pressure-sensitive adhesive composition contains (a) a vinyl monomer mixture mainly containing an alkyl(meth)acrylate (a1) whose alkyl moiety has 2 to 14 carbon atoms, or a partial polymer of the vinyl monomer mixture; (b) a photoinitiator; and (c) an alkylphenol tackifier. The acrylic pressure-sensitive adhesive composition preferably contains 0.001 to 5 parts by weight of the photoinitiator (b) and 0.

Abstract: A tape-shaped insulating material comprises an insulating substrate and a pressure-sensitive adhesive layer provided on one side or both sides of the substrate, wherein the pressure-sensitive adhesive layer is made of an aqueous dispersion type acrylic pressure-sensitive adhesive containing a polymer emulsion that is a product of emulsion polymerization of a monomer mainly composed of C4 to C12 alkyl(meth)acrylate ester in the presence of an emulsifying agent. The tape-shaped insulating material has an electrolytic corrosion coefficient according to JIS C-2338 of 0.98 or more, and the pressure-sensitive adhesive layer has good insulating characteristics.

Abstract: A tape-shaped insulating material comprises an insulating substrate and a pressure-sensitive adhesive layer provided on one side or both sides of the substrate, wherein the pressure-sensitive adhesive layer is made of an aqueous dispersion type acrylic pressure-sensitive adhesive containing a polymer emulsion that is a product of emulsion polymerization of a monomer mainly composed of C4 to C12 alkyl(meth)acrylate ester in the presence of an emulsifying agent. The tape-shaped insulating material has an electrolytic corrosion coefficient according to JIS C-2338 of 0.98 or more, and the pressure-sensitive adhesive layer has good insulating characteristics.

Abstract: A sheet for protecting a paint film which does not deteriorate or discolor the paint film even when the sheet is adhered to protect the paint film under the condition containing acidic rainwater or detergent and can maintain the adhered state over an extended-period of time without peeling off is disclosed. The sheet for protecting a paint film comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate. The sheet has an air permeability in a direction of sheet thickness of 20,000 sec/100 cc or more and a moisture permeability in a direction of sheet thickness of 2,000 g/m2·24 hr or more. The sheet for protecting a paint film further comprises a porous substrate and a pressure-sensitive adhesive layer formed on one surface of the porous substrate, wherein the porous substrate has an ultraviolet transmission of 10% or less at a wavelength of from 190 to 370 nm.

Abstract: A pressure-sensitive adhesive comprising 100 parts by weight of an isobutylene polymer and 0.001 to 5 parts by weight of at least one release control agent selected from the group consisting of an alcohol having a molecular weight of 90 to 300 and an oxygen atom content of 8.5% or more or a derivative thereof and a carboxylic acid having a molecular weight of 70 to 400 and an oxygen atom content of 11% or more or a derivative thereof; and a surface protecting material having a pressure-sensitive adhesive layer comprising the adhesive. The adhesive has well-balanced characteristics in initial adhesion, retention of initial adhesion, and weather resistance.

Abstract: A pressure-sensitive adhesive comprising 100 parts by weight of an isobutylene polymer having been masticated in an organic solvent with a radical generator and 0.001 to 5 parts by weight of at least one release control agent selected from the group consisting of an alcohol having a molecular weight of 90 to 300 and an oxygen atom content of 8.5% or more or a derivative thereof and a carboxylic acid having a molecular weight of 70 to 400 and an oxygen atom content of 11% or more or a derivative thereof; and a surface protecting material having a pressure-sensitive adhesive layer comprising the adhesive. The adhesive has well-balanced characteristics in initial adhesion, retention of initial adhesion, and weather resistance.

Abstract: A sheet for protecting a paint film is disclosed, which does not cause deterioration or discoloration the paint film even when the sheet is adhered to protect the paint film under the condition containing water or water vapor over a long period of time and thus can maintain the adhered state without peeled off the sheet. The sheet for protecting a paint film comprises a multi-layer substrate comprising a water or water vapor barrier layer as a surface layer and a water or water vapor-permeable layer as a back, and a pressure-sensitive adhesive layer formed on the water or water vapor-permeable layer.

Abstract: A sheet for protecting paint film comprising a support having formed thereon a rubber adhesive layer comprising an isobutylene polymer having a degree of dispersion of from 1 to 2.3 and a weight average molecular weight of 300,000 to 600,000 (the domain A in the FIGURE) as the base polymer.The paint film protecting sheet has the compatibility of the prevention of the occurrence of a microdeformation and a good peelability. That is, when an article such as automobiles having a paint film applied with the protecting sheet is placed outdoors for a long period of time at high temperature, the paint film is hard to deform and the sheet can be easily peeled even after adhering for a long period of time.

Abstract: A sheet for protecting paint films of automobiles for adhering to the incompletely cured paint films of automobiles comprising two pack urethane paint, the sheet comprising a support and a pressure-sensitive adhesive layer formed thereon, wherein the sheet has a Young's modulus E of at least 75 N/mm.sup.2 and a coefficient of flexural stress k represented by the formula k=Eh.sup.3 wherein h is a thickness of the support, of 0.035 or less. The protective sheet can uniformly protect the paint films and easily be peeled and removed therefrom without causing environmental problems and adhesive remaining of the pressure-sensitive adhesive layer. Even when the sheet is adhered to incompletely cured paint films of automobiles and they are allowed to stand for a long period of time under an outside high temperature in summer, the sheet does not cause the deformation of the paint film and the microdeformations by the deformation of the paint film at the edge portion of the pressure-sensitive adhesive layer.

Abstract: A semiconductor device obtained by encapsulating a semiconductor element with a thermosetting resin composition comprising a thermosetting resin (Component I) and a hardener (Component II) having the following components III and IV incorporated therein. The semiconductor device is thus provided with a high heat resistance at infrared reflow step and a high flame retardance, showing a drastically enhanced reliability.(III) A metal hydroxide represented by the following general formula (1):n(M.sub.a O.sub.b).cH.sub.2 O (1)wherein M represents a metallic element; a, b and c each represents a positive number; and n represents a positive number of 1 or more, with the proviso that when M.sub.a O.sub.b is repeated, the plurality of M's may be the same or different and that a and b may be the same or different; and(IV) a metal oxide represented by the following general formula (2):n'(Q.sub.d O.sub.

Abstract: A semiconductor device obtained by encapsulating a semiconductor element with a thermosetting resin composition comprising a thermosetting resin (Component I) and a hardener (Component II) having the following components III and IV incorporated therein. The semiconductor device is thus provided with a high heat resistance at infrared reflow step and a high flame retardance, showing a drastically enhanced reliability.(III) A metal hydroxide represented by the following general formula (1):n(M.sub.a O.sub.b).cH.sub.2 O (1)wherein M represents a metallic element; a, b and c each represents a positive number; and n represents a positive number of 1 or more, with the proviso that when M.sub.a O.sub.b is repeated, the plurality of M's may be the same or different and that a and b may be the same or different; and(IV) a metal oxide represented by the following general formula (2):n'(Q.sub.d O.sub.

Abstract: A paint film-protective sheet comprising a supporting substrate having formed thereon a rubber-based pressure-sensitive adhesive layer containing a fatty acid glycerol ester and an antifungal agent.

Abstract: A thermosetting resin composition, and a resin sheet, a prepreg and a laminated sheet using the composition are disclosed, which composition comprises (A) an amine-terminated oligomer represented by formula (I): ##STR1## wherein Ar.sub.1 represents a divalent aromatic group, AR.sub.2 represents a tetravalent aliphatic or aromatic group, and a represents an integer of at least 1; and (B) a polymaleimide represented by formula (II): ##STR2## wherein Ar.sub.3 represents an aliphatic group having two or more carbon atoms or an aromatic group, and b represents an integer of at least 2, provided that a part of the whole of hydrogen atoms of at least one group of Ar.sub.1, Ar.sub.2 and Ar.sub.3 in formulae (I) and (II) is substituted by fluorine atoms.